文件名称：虚拟化使数据中心更为自动化…-VMware虚拟化解决方案
文件大小：8.22MB
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更新时间：2024-05-12 13:33:25
VMware 解决方案
虚拟化使数据中心更为自动化… 自动化 蔓延增长 整合 物理服务器系统 虚拟机 IT 服务 虚拟机是标准化的软件容器 OVF + * VMware is not the first company to talk about automation in the datacenter. So one legitimate question we will be facing is why is VMware well positioned to take advantage of this opportunity? What is it about VMware and virtualization that will make this opportunity materialize? To understand that, we need to go back a little bit to basics. Some of the key properties of virtualization hold the key to understanding why virtualization is so well suited for automating critical IT processes in the datacenter. The key innovation that VI introduces is the new unit of management – the virtual machine. The VM is a standardized software container. There are two keywords here – 1) standardized, and 2) software. Let’s first talk about the software part of it. The fundamental change that virtualization introduces is turning physical capabilities into software files. And software files are a lot more malleable and manipulateable. That’s why they lend themselves to automation a lot more easily than physical assets. One way to understand the impact of turning hardware capabilities into software a comparison with the evolution of money. It used to be very physical – stashed or carried around in coins and then as paper. Later most of money was digitized - the cash money was turned into bytes, and once that happened, it dramatically increased the velocity of commerce – money can be moved around the world now with lightening speed – because it is virtual, it is information. By turning physical capabilities into software, into bits and bytes, VI has the potential for same dramatic impact on IT – it can speed it and optimize IT management processes. The second keyword is standardized. As all of you know VMs are hardware independent containers and they mask the complexity of the underlying hardware, and everything that is inside them – the operating system, and the application. This standardization creates an opportunity to apply consistent operations on the VM – doesn’t matter on what hardware it is running, and what applications are running inside it. VMs are the new unit of management in the virtualized datacenter, and because they are standardized software containers, IT management processes in the virtualized datacenter become content management. The challenge of content management is fairly well understood – it is about who creates, approves a document, where do you save it, who can read it and change it, how do you archive it. Now we are moving one step further – from an individual VM being the unit of management to defining an entire collection of VMs that jointly support and entire application stack. This is how we define an IT Service – it is the set of related VMs that support an entire application stack. We already support that notion in Lab Manager and Stage Manager, and we will soon support it in the rest of our products. So we are moving one level higher in the abstraction of resources – enabling customers to manage the environment at that higher level – define a set of VMs, and overlay policies, properties for that entire set. To that end, we have collaborated with other companies on a new standard for defining virtual IT services. That standard is called OVF – and it represents a set of metadata that describes and VM or a set of VMs, and it instructs any virtualization platform how to treat a VM. This is an important advancement in order to encourage ISVs to package their applications as virtual appliances. You can think of OVF as the standardized “bar code” label that any hypervisor or virtualization platform can read.